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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
21,579Searchable applications
297Recorded as pending
86%Approval rate · 17,470 approved or refused records
2,481Refused applications

14,989 approved · 2,481 refused · 1,106 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026
Planning information Planning and buildingLocal plan Our Local PlanPre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation AreaArticle 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records
Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

  1. Decided - Granted6/2020/1632/FULL

    Demolition of the existing masonry walls, entrance doors to the individual garages including the brickwork gable ends to create surface parking spaces

    Campus East Car Park College Way Welwyn Garden City AL8 6UN

    Received 8 Jul 2020
  2. Decided - Granted6/2023/0024/HOUSE

    Erection of single storey infill rear additions, reduction of rear utility area, fenestration alterations and new front boundary wall

    38 Osborne Road Little Heath Potters Bar EN6 1SF

    Received 5 Jan 2023
  3. Decided - Granted6/2025/2187/LAWP

    Certificate of lawfulness of a single storey side extension following removal of chimney

    10 Theobalds Road Cuffley Potters Bar EN6 4HQ

    Received 14 Oct 2025
  4. Decided - Granted6/2018/1975/FULL

    Erection of rear extension to vacant warehouse/industrial building including alterations to openings

    29 Brownfields Welwyn Garden City AL7 1AN

    Received 26 Jul 2018
  5. Decided - Refused6/2020/2383/HOUSE

    Erection of a single storey side and single storey rear/side extension

    20 Monks Rise Welwyn Garden City AL8 7NF

    Received 17 Sept 2020
  6. Decided - Withdrawn6/2018/3117/FULL

    Change of use from existing retail unit (A1 use) to A3 use with opening hours 12.00-23.00 Monday to Sunday

    12 The Arcade Hatfield AL10 0JY

    Received 6 Dec 2018
  7. Decided - Granted6/2025/2024/TPO

    1 x Oak to remove two low hanging branches over substation and adjoining garage and to reduce overhanging vegetation to 5 Orchard Close by up to 3m from branch tips to suitable growth points. Reduction to be undertaken to branches no higher than approx. 8m from ground level. TPO 984 (2023). Tree is overhanging neighbouring property dropping lots of debris in to gutters and seating area.

    36 Kingsmead Cuffley Potters Bar EN6 4AN

    Received 22 Sept 2025
  8. Decided - Granted6/2021/3446/HOUSE

    Single storey side and rear extension. Conversion of existing garage to home studio.

    15 Wendover Drive Old Welwyn AL6 9LT

    Received 9 Dec 2021
  9. Decided - Granted6/2025/0966/HOUSE

    Remodelling of the existing house to include a part single storey, part two storey rear extension, two storey side extension, roof alterations, floor plan redesign and associated works

    2 Roe Green Close Hatfield AL10 9PE

    Received 27 May 2025
  10. Decided - Granted6/2017/0896/TPO

    Crown reduce 1 x Oak by 30% covered by TPO 113

    5 Pine Crest Welwyn AL6 0EQ

    Received 28 Apr 2017
  11. Decided - Granted6/2018/1341/ADV

    Installation of 43 x signs including 6x panel signs, 3x DFT signs, replacing 28x existing panel signs and replacing 1 panel sign with an illuminated fascia at car park entrance. Following removal of 5x existing panel signs

    Waitrose Ltd Bridge Road Welwyn Garden City AL8 6AB

    Received 21 May 2018
  12. Decided - Granted6/2018/2524/HOUSE

    Erection of single storey rear conservatory

    55 Briars Wood Hatfield AL10 8DH

    Received 2 Oct 2018
  13. Decided6/2020/2693/TC

    Crown reduce Oak tree by 20% (T1)

    3 Guessens Walk Welwyn Garden City AL8 6QS

    Received 6 Oct 2020
  14. Decided - Granted6/2019/0156/HOUSE

    Erection of rear extension following demolition of conservatory

    103 Oakdale Welwyn Garden City AL8 7QP

    Received 25 Jan 2019
  15. Decided - Granted6/2026/1205/TPO

    TPO 24 T3 - 1 x Beech tree to reduce overhanging lateral branches by approximately 2m. Reduce lateral overhang to no 16 as tree is too close to boundary and excessive overhang is leaving bird poo on kids play equipment

    12 Mardley Hill Welwyn AL6 0TN

    Received 10 Jul 2026
  16. Decided - Refused6/2017/1211/COND

    Submission of details pursuant to condition 7 (Refuse collection) on planning permission 6/2015/1901/RM

    Queen Elizabeth Ii Hospital Howlands Welwyn Garden City AL7 4HQ

    Received 2 Jun 2017
  17. Decided6/2018/0868/TPO

    Various works to trees - Fell Pear Tree (T1), Fir Tree (T3),Elder (T6) and crown reduction to Apple tree (T2) 6-8ft,Damson Tree (T5) 8ft and Plum Tree (T4) 6-8ft. In a Conservation area.

    22 Fearnley Road Welwyn Garden City AL8 6HW

    Received 3 Apr 2018
  18. Decided - Granted6/2019/1739/HOUSE

    Erection of a part single storey/ part two storey rear and side extension and hard and soft landscaping to the front garden to facilitate the extension of the existing dwelling.

    55 Heronswood Road Welwyn Garden City AL7 3ER

    Received 15 Jul 2019
  19. Decided - Granted6/2025/0737/EM

    Installation of garden office

    61 Handside lane Welwyn Garden City AL8 6SH

    Received 17 Apr 2025
  20. Decided - Granted6/2018/2724/HOUSE

    Erection of detached single garage

    Plas-Y-Coed Digswell Lane Welwyn AL6 0SN

    Received 23 Oct 2018
  21. Decided - Granted6/2018/1379/EM

    Reduce crown of 1 x Sweet Chestnut tree by up to 30%

    11 The Pastures Welwyn Garden City AL7 4PX

    Received 22 May 2018
  22. Decided - Granted6/2022/0853/HOUSE

    Conversion of loft to include construction of side dormer and Juliet balcony. Insertion of side velux windows

    48 Butterwick Way Welwyn AL6 9GH

    Received 8 Apr 2022
  23. Decided - Granted6/2023/1734/COND

    Submission of details pursuant of condition 2 (boundary treatment) on planning permission 6/2021/1711/FULL

    41 Brookmans Avenue Brookmans Park Hatfield AL9 7QH

    Received 17 Aug 2023
  24. Decided - Refused6/2022/2530/HOUSE

    Erection of a part-single, part-two storey side extension and part subterranean extension

    The Lodge 2 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

    Received 4 Nov 2022

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

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  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

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  • Property research · 13 min read

    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

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    Published Updated

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

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